Assigffoe op osste



(No Model.)

W. A. DELMAGE.

SPINDLE STEP FOR SPINNING MACHINES.

No. 336,300. Patented Feb. 16, 1886.

INVENTOR:

BY 4 l t I ATTORNEYS.

WITNESSES UNITED STATES PATENT OFFICE.

WILLIAM A. DELMAGE, OF LONVELL, MASSACHUSETTS, ASSIGNOR OF ONE- HALF TO ALVIN A. HANSOOM, OF SAME PLACE.

SPiNDLE STEP FOR SPlNNlNG MACHlNES.

SPECIFICATION forming part of Letters Patent No. 336,300, dated February 16, 188G.

Application filed June 24, 1884.

To aZZ whom it may concern.-

Be it known that LWILLIAM A. DELMAGE, of Lowell, in the county of Middlesex and State of Massachusetts, have invented a new and Improved Spindle-Step for Spinning-Machines, of which the following is a full, clear, and exact description.

My improvements relate to steps of the type shown in Letters Patent granted to me September 5, 1882, No. 263,688, in WhlCh a dead-air chamber is formed above the oilchamber for the purpose of preventing the entrance of floating fibers and other foreign matters into the oil-chamber.

The special object of my present invention is to facilitate oiling in cases where the spindles cannot readily be raised in the step, as in ringspinning frames; and it consists in an annular depression or groove provided in the top of the air-chamber and around the spindle, as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a vertical section of a spindlestep with its adj unctive parts of my improved construction, the spindle being shown in side view and partly broken away. Fig. 2 is a plan view of the same. Fig. 3 is a vertical section of the step with its adjunctive parts in a modified form, the spindle being shown in side view and partly broken away; and Fig. 4, a plan View of the step.

Referring to Figs. 1 and 2, the step A 1s made with an enlarged body, a, above the seat Z2, that receives the end of spindle B. The chamber thus formed around the spindle is divided by a diaphragm, 0, so as to form the lower and oil chamber, d, and an air-chamber, 6, above. The top of chamber e is closed by a cap, f, that is apertured for the spindle,and the edges of the aperture are countersunk or depressed, so that an annular groove or recess, 5 f, is formed around the spindle. At 9 g in the cap are small holes.

WVhen the spindle is lubricated, the oil settles in the depression f and runs down into Serial No. 135,885. (No model.)

the step without the spindle being raised, as the holes 9 give the necessary vent for air. 51

In Fig. 3the groove or recess f is obtained by thecap 1" being sunk below the top of the step-body and the holes put in the outer edge of the cap. These holes y do not hinder the utility of the dead-air chamber in excluding 5 fibers, as they become closed by the oil thrown up and outward by the centrifugal or rotary motion of the spindle, whereby the oil will be elevated away from the spindle into a film contiguously to and thus intercept the en- 6( trance of air through the apertures, so that air cannot enter, while at the same time the oil is prevented, by the centrifugal force of the revolving spindle, from working up on the spindle and over the cap f. lVith the form 61 shown in Fig. 3 I prefer to use the auxiliary cap h, that excludes dirt from the oilholes and removes the floating fibers still farther from the bearing. This cap h is removable to allow oiling. 7(

In order to reduce the expense of manufacture, the air-chamber c is formed by the insertion in the body of the step of a cup struck up from sheet metal, the bottom of the cup forming the diaphragm c, and the cover or cap f is attached to the cup by turning the edges. This construction requires less material, and the parts can be readily formed by drop-forg- 1ng.

Having thus described my inventiomwhat I 8c claim as new, and desire to secure by Letters Patent, is.

1. The spindle-step having an air-chamber,

e, in combination witha cap, f, for closing said chamber, said cap being provided with ventholes and formed with a recess or depression for retaining oil, substantially as described.

2. The shcet-metal cup and the cap f, combined with step A, the bottom of said cup forming a diaphragm separating the oil and the air chambers, substantially as described.

VILLIAM A. DELMAGE.

Vitnesses:

SAMUEL L. BUTMAN, CLARENCE E. BURNIIAM. 

